An engine develops 10 𝑘𝑊 of power. How much time will it take to lift a mass of 200 𝑘𝑔 to a height of 40 𝑚 (𝑔 = 10 𝑚/𝑠𝑒𝑐2)

Question: An engine develops 10 𝑘𝑊 of power. How much time will it take to lift a mass of 200 𝑘𝑔 to a height of 40 𝑚 (𝑔 = 10 𝑚/𝑠𝑒𝑐2)

(A) 4 𝑠𝑒𝑐

(B) 5 𝑠𝑒𝑐

(C) 8 𝑠𝑒𝑐

(D) 10 𝑠𝑒𝑐

Answer: Option (C)

Solution:

An engine develops 10 𝑘𝑊 of power. How much time will it take to lift a mass of 200 𝑘𝑔 to a height of 40 𝑚 (𝑔 = 10 𝑚/𝑠𝑒𝑐2)
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